VIU 



CONTENTS. 



scales 



94. Terrestrial magnetism : secular change of horizontal intensity 



95. " " total intensity .... 



96. " " secular change of total intensity 



97. " " agonic line 



98. Pressure of mercury and water columns .... 



99. Reduction of barometer to standard temperature . 

 100. " '* " " " gravity, inch and metric 

 loi. " " " " latitude 45° : inch scale 



102. " " " " " " metric scale . 



103. Correction of barometer for capillarity : inch and metric scale 



104. Aerodynamics: data for wind pressures .... 



105. " " " the soaring of planes 



1 06. Coefficients of friction . 



107. Viscosity of water at different temperatures 



108. Coefficients of viscosity for solutions of alcohol in water 



109. Specific viscosity of mineral oils ...... 



no. " " " various oils ...... 



111. " " " " liquids 



112. " '* " " " temperature variation 



113. " " " solutions: variation with density and temperature 



114. " " " " atomic concentrations . 



115. " " •' gases and vapors ..... 



116. " " " " " " temperature variation 



117. Diffusion of an aqueous solution into pure water . 



118. '* " vapors 



119. " " gases and vapors 



119a. " " metals into metals ...... 



120. Solubility of inorganic salts in water: temperature variation 



121. " " a few organic salts in water : temperature variation 



122. " " gases in water ....... 



123. Absorption of gases by liquids 



124. Capillarity and surface tension : water and alcohol in air 



125. " " " " miscellaneous liquids in air 



126. " " " " aqueous solutions of salts . 



127. Capillarity and surface tension : liquids in contact with air, water or 



mercury .......... 



128. Capillarity and surface tension : liquids at solidifying point . 



129. " " " " thickness of soap films 



130. Vapor pressures 



131. " " of ethyl alcohol 



132. " '• " methyl " 



133. " " and temperatures : (a) carbon disulphide . 



(l>) chlorobenzine 

 (<:) bromobenzine 

 (ii) aniline . 

 (e) methyl salicylate . 

 (/) bromonaphthaline . 

 (^) mercury 



